Home / 126,915.52-190,324.06-67,718.89

Finding the Fourth Proportional to 126,915.52, 190,324.06 and 67,718.89

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Solution

The fourth proportional to 126,915.52, 190,324.06 and 67,718.89 is: 101,552.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,915.52 : 190,324.06 = 67,718.89 : x
  2. Step 2: Convert to fraction form
    126,915.52/190,324.06 = 67,718.89/x
  3. Step 3: Cross multiply
    126,915.52x = 190,324.06 × 67,718.89
  4. Step 4: Simplify right side
    126,915.52x = 12,888,535,068.31
  5. Step 5: Solve for x
    x = 12,888,535,068.31/126,915.52
  6. Step 6: Final answer
    x = 101,552.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.